very good kit i brought thid for my sons bike that had seized on the piston ring. a very nice kit and went on the bike with no problems. bike running well now. very good value for money and a very quick service. (29/03/2013) barry davies - isle of wight

YOU SHOULD ALSO KNOW THAT POLINI OFFER NO WARRANTY WITH THERE PARTS AS THEY ARE FOR "COMPETITION" USE ONLY" SO PLEASE BEAR THIS IN MIND WHEN MAKING YOUR PURCHASE

Note kit uses the std size small end bearing (not incuded)

Price: £470.31 (£564.37 Including VAT at 20%)

Quantity:

Customer Reviews

Unreal Got the kit at its best max compression, running italkit flywheel rs 250 carb. Uprated crank and ceramic bearings. I would recommend using formula1 2stroke cart oil or it will just seaze up. Has no problems wheeling up to 4th gear (24/03/2016) -

Aprilia AF1 125 Sports Pro 125 ITALKIT 140cc Big Bore Kit

Produced By The Original Maker Of The Aprilia Cylinder "Gilardoni" This 140cc Big Bore Kit Comes With A Forged And Balanced Single Ring Vertex Piston Kit, Cylinder Bored To 57mm (140cc) Gaskets And A Power Valve Spacer.

We feel the Italkit big bore kit is the best big bore kit on the market for the Aprilia AF1 Sports Pro, unlike the Polini 154 kit the Italkit one likes to rev like a 125 but still gives you more power all though the rev range.

You Will Need To Use Your Existing Cylinder Head With This Kit, You Can Use The Std Dome VHM Head But Not The Flat Top VHM Head!

kit uses the std size small end bearing (not incuded) Sorry Out Of Stock

Price: £333.25 (£399.90 Including VAT at 20%)

Quantity:

Sorry Out Of Stock

Aprilia AF1 125 Sports Pro Mitaka Piston Kit

Mitaka Piston kit to fit a Aprilia AF1 Sports Pro 125cc

This is a Mitaka Piston kit STD type 2 rings, made in Taiwan but of very good quality.

Piston kit contains piston, piston rings, gudgeon pin and 2 circlips.

Please Note Our Kit comes with the "Riken"Piston Rings & Not The Cheap Piston Rings Some Other Sellers Are Offering

The piston has a coated piston skirt for lower friction,this piston is suitable for road or race use.

Please Choose Piston Size

53.96mm

53.97mm

53.99mm

54.00mm

Ring Upgrade

Ring Upgrade choices

Price: £39.03 (£46.84 Including VAT at 20%)

Quantity:

Customer Reviews

Excellent product I've used these pistons for a while and run everything full power and max compression and have never had an issue. (12/07/2014) Mick - Lincoln

Piston kit Can't believe the quality of these piston I fitted one to my 09 model and had a zeeltronic fitted and loads of other mods and 2000 miles lates it's still same compression I would recommend this piston for the aprilia rs 125 (04/07/2014) Paul - Hull

Great product These Mitaka pistons get a lot of bad feedback, however this isn't due to the piston being sub-standard but down to the fact that the piston rings they used to supply with it were inferior rubbish.. Well done to PJME for supplying RIK rings with them now. No problems using this kit 1000+ miles later (01/04/2013) Lewis - Warwick

Aprilia AF1 125 Sports Pro Athena Racing Piston

This Is A High Quality Forged Athena Racing Piston For The Aprilia AF1 125 Sports Pro.

Fits All Years And Both Rotax 123 And Rotax 122 Type Engines.

The Kit Comes With Piston, Piston Ring, Gudgeon Pin And 2 Circlips.

Athena Pistons Are Manufactured Using A Revolutionary Computerised Technology From F1 And GP Racing, Athena Forged Pistons Offer The Best Solution In Terms Of Performance And Reliability.

Athena Recommend A Minimum Piston To Bore Clearance Of 0.060mm With This Piston.

Piston Rings Are 1.00mm Thick

Please Choose Piston Size

53.96mm Piston Size

53.97mm Piston Size

Price: £81.20 (£97.44 Including VAT at 20%)

Quantity:

Aprilia AF1 125 Sports Pro Vertex Piston kit Twin Ring Std Type

Vetex Piston Kit For The Aprilia AF1 Sports Pro 125cc

This Piston Is A Direct Replacment For The Std Item With 2 Piston Rings

Aprilia AF1 125 Sports Pro Vertex Race Piston Kit Single Ring

This Piston Is A Direct Replacment For The Std Item With 1 Piston Ring, Really Only For Race Use !

Vertex Pistons Are Made In Italy With A Molybdenum Coating,

extending the coating.

Please Choose Piston Size

53.97mm Vertex A Grade

53.98mm Vertex B Grade

Price: £64.99 (£77.99 Including VAT at 20%)

Quantity:

Aprilia AF1 125 Sports Pro Wiseco Piston

Wiseco Piston kit to fit a Aprilia AF1 Sports Pro 125cc

This is a Wiseco Piston kit made in The USA, The Piston is Forged For Better Strength.

Piston kit contains piston, piston rings, gudgeon pin and 2 circlips.

This Piston Is Suitable For Road And Racing Use

Choose Grade

Piston Size 53.95

Price: £126.00 (£151.20 Including VAT at 20%)

Quantity:

Aprilia AF1 125 Sports Pro Wossner Piston Kit Std Twin Ring

Replacement Wossner Piston To Fit The Aprilia AF1 Sports Pro 125cc

Wössner pistons are manufactured from a high yield 4032 alloy which has low expansion under temperature. This allows closer piston to bore clearances reducing piston noise. Wössner pistons also feature a unique graphite based coating on the skirts which aids the bedding in procedure.

Aprilia AF1 125 Sports Pro Top End Gasket Kit Rotax 123 Athena

This Kit Is Made In Italy By Athena And Is A Better Quality One Than The Budget One We Sell Which Is Made In Taiwan. "Why is it better i hear you say" Well the gaskets are made from the same material & in the same factory as the original aprilia ones, the gasket material is better than the Taiwanese one and fits much nicer.

Good gasket Need this part quite often, so took a few for spares (05/08/2012) Andrii - Dnipropetrovsk, UA

Spent ages looking for this gasket! None of the Aprilia dealers had any in stock and all the other motorcycle shops wanted to sell me a gasket set. Ordered 2 and got it them in the post next day, well done PJME (27/06/2012) -

Aprilia AF1 125 Sports Pro Power Valve Blade Moto RRT

Here is the New Up-rated Exhaust Power Valve To Fit The Aprilia AF1 Sports Pro 125

It Is Made From High Spec Coated Aluminium.

The Special Coating Offers Superb Strength And Has The Added Benefit Of Stopping The Blade Wearing Out.

This Is The Mk 3 Version That Has A Much Smaller Area Where The Cable Fits Into, Tests Have Shown This Increases The Strength Of That Area By 35% In Comparison To The Genuine Aprilia One. There Is Also A New Better Coating On The Outside Of The Blade That Not Only Stops Wear But Also Carbon Build Up.